GENUINE OEM HUSQVARNA PARTS - 54" MULCH KIT FOR RZ5424 531309643 REPLACES #954040461 Mulch Kit Genuine Husqvarna Part # 531309643 For use with 54 stamped decks on YTH &amp; LGT Model Series (2007 models and newer) Kit Does NOT Fit YTH or LGT Series with Fabricated (Welded) Deck Kit Does NOT Fit Zero Turn Mower Decks